Abstract
The stability of the zonal axisymmetric quasi-geostrophic hydrostatic solution to the equations of atmospheric dynamics that is determined by the horizontal temperature gradient is studied. Time-dependent regions of unstable solutions specified by the Rayleigh number describe ordinary convective (baroclinic) processes and the long-term weak growth of disturbances under the action of the centrifugal forces arising from the Earth’s rotation. Comparison with a centrifugal hydrodynamic instability is made. The spatiotemporal structure of the corresponding geophysical fields is described.
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Original Russian Text © E.B. Gledzer, 2008, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2008, Vol. 44, No. 1, pp. 36–47.
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Gledzer, E.B. Similarity parameters and a centrifugal convective instability of horizontally inhomogeneous circulations of the Hadley type. Izv. Atmos. Ocean. Phys. 44, 33–44 (2008). https://doi.org/10.1134/S0001433808010040
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DOI: https://doi.org/10.1134/S0001433808010040